print('hello')
import requests
headers ={
"User-Agent": "Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/11.0 Mobile/15A372 Safari/604.1"
}
res = requests.get("https://zhuanlan.zhihu.com/p/51446011", headers=headers)
print(res.content.decode())